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Q. At first, the translational rms speed of a molecule of an ideal gas is 484m/s. The pressure and volume of this gas are kept constant, as the number of molecules is doubled, what is the final translational rms speed of molecules?
Q. A snowball rolls off a barn roof that slopes downward at the angle of 40 ^circ. The edge of the roof is 14.0 {rm m} above the ground, and the snowball has a speed of 7.00 {rm m/s} as it rolls off the roof. Ignore air resistance.
Batman and Robin are attempting to escape that dastardly villain, the Joker, by hiding in a large pool of water (n=1.33). The Joker stands gloating at the edge of the pool.
A stone is thrown horizontally at a speed of 4.9 m/s from the top of a cliff 89.5 m high, how long does it take the stone to reach the bottom of the cliff.
if the box is moving at a constant speed of 0.35m/s and the coefficient of kinetic friction is 0.12. What is the magnitude of F.
what is the volume of an iron atom. What is the ratio of the mass density of girder A to the mass density of girder B.
A uniform plank of length 4.50 m and weight 275 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 456 N walk on the overhanging part of the plank before it just be..
A cube of ice is taken from the freezer at -8.0°C and placed in a 97 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of the ice cube.
find the x and y components of each vector.
An uncharged capacitor is connected to the terminals of a 4 battery, and 12 flows to the positive plate. The 4 battery is then disconnected and replaced with a 7 battery, with the positive and negative terminals connected in the same manner as bef..
if an acoustic wave from an echo sounder on a ship take .30 seconds to reach the sea-floor and reflected wave returns to the boat in .30seconds how deep is the water.
a) Determine the magnitude and direction of the electrostatic force acting on particle A in the figure given below due to particles B and C . The values of the charge on these particles are indicated in the figure.
compute the diameter of the bright circular spot formed.
Clouds in the tropics tend to move from east to west. Consequently, which rhyme best explains a rainbow seen in the tropics.
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